[go: up one dir, main page]

WO1996024390A1 - Procede et dispositif pour la sterilisation d'eaux residuaires - Google Patents

Procede et dispositif pour la sterilisation d'eaux residuaires Download PDF

Info

Publication number
WO1996024390A1
WO1996024390A1 PCT/EP1996/000502 EP9600502W WO9624390A1 WO 1996024390 A1 WO1996024390 A1 WO 1996024390A1 EP 9600502 W EP9600502 W EP 9600502W WO 9624390 A1 WO9624390 A1 WO 9624390A1
Authority
WO
WIPO (PCT)
Prior art keywords
waste water
wastewater
cooling
receptacle
sterilized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP1996/000502
Other languages
German (de)
English (en)
Inventor
Reinhard Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IC INGENIEUR CONSULT TECHNISCHE GESAMTPLANUNG GmbH
Original Assignee
IC INGENIEUR CONSULT TECHNISCHE GESAMTPLANUNG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19504479A external-priority patent/DE19504479A1/de
Priority claimed from DE29510060U external-priority patent/DE29510060U1/de
Application filed by IC INGENIEUR CONSULT TECHNISCHE GESAMTPLANUNG GmbH filed Critical IC INGENIEUR CONSULT TECHNISCHE GESAMTPLANUNG GmbH
Priority to DE59606314T priority Critical patent/DE59606314D1/de
Priority to AT96904007T priority patent/ATE198552T1/de
Priority to DE19680061T priority patent/DE19680061D2/de
Priority to EP96904007A priority patent/EP0808179B1/fr
Priority to AU47882/96A priority patent/AU4788296A/en
Publication of WO1996024390A1 publication Critical patent/WO1996024390A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L11/00—Methods specially adapted for refuse
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/003—Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level

Definitions

  • the invention relates to a device for sterilizing waste water, such as infectious or genetically contaminated waste water, comprising at least a first and a second receptacle.
  • a sterilizing device for sterilizing liquid by continuous heating in which the liquid to be sterilized is fed to a steam jet pump which has a heating device on the output side.
  • DE 25 21 601 AI describes a water treatment system with a boiler and a storage container, which can optionally be designed to be mobile.
  • a movable carriage is provided according to DE-PS 60 232, in which several containers are connected in series, through which the water to be sterilized flows. Using two steam boilers connected in series, liquid can be heated to over 120 ° C in order to sterilize it (DE-PS 58 829).
  • a further device for sterilizing water can be found in DE-PS 146 402, DE-PS 62 114 or the literature reference GWF, Wasser, Abwasser, 134 (1993), No. 1, pages 1 to 9.
  • the present invention is based on the problem of developing a device of the type mentioned at the outset in such a way that waste water, in particular infectious or genetically highly contaminated waste water, can be sterilized and disposed of in a simple but safe manner without structural changes to the work to be disposed of. how laboratory space is required.
  • the sterilization of wastewater should also be simplified if wastewater is only occasionally generated at different locations.
  • each receptacle of the mobile device is designed as a controlled, coolable sterilization container that collects waste water and in each case has both a heating device and a cooling element of a cooling device.
  • the device is designed in particular as a lower table which has an upper cover which is provided with a feed, such as a funnel or basin, which guides the waste water into one of the receptacles.
  • a feed such as a funnel or basin
  • a water tap can be arranged, which can be connected to a stationary line on the one hand and preferably has an automatic proximity control on the other hand.
  • Air outlet openings of a refrigerator can be present in the cover of the lower table, in the closed cooling circuit of which the cooling elements such as cooling coils can be switched.
  • wastewater such as infectious or genetically highly contaminated wastewater can be heated to sterilization temperature for alternating operation via the double container system according to the invention and then after the Sterilization time can be cooled to a temperature by appropriate cooling in order to be able to feed the wastewater to the normal drainage system.
  • the recooling does not necessarily have to be via an internal re-cooling supply like the cooling machine, but can be done by tap water which flows through the cooling coils in the respective receptacle.
  • a heating tube is connected to the bottom of each receptacle, which is connected to a small steam generator. This is connected to the pipes via control valves.
  • the small steam generator consists of a preferably cylindrical housing in which a heating element is arranged and via which the required steam is generated. The arrangement of the steam generator outside the receptacle results in ease of maintenance. A corresponding heating arrangement is also less prone to failure.
  • the device according to the invention clearly meets the requirement of safety standards for the operation of workplaces where contaminated waste water is produced.
  • a discharge line for example a solenoid valve
  • a delivery unit such as a gear pump is arranged, in order in this way to sterilize and to the required extent to be able to pump cooled wastewater.
  • the wastewater is then fed to the drainage system via a connection such as a hose.
  • the hose ends above the receptacle in the drainage system.
  • the hose itself can be connected to the line having the conveying unit via a quick-action coupling which is preferably arranged on one side of the lower table.
  • a quick-action coupling which is preferably arranged on one side of the lower table.
  • Shut-off valves such as control valves are then provided in the lines of the refrigeration cycle coming from the receptacle in order to optionally integrate one of the cooling coils and thus the receptacle in the refrigeration cycle.
  • the control valves can be controlled via temperature sensors, which are arranged in the head area of the receptacle and determine the temperature of the waste water.
  • a fill level probe is arranged in the head region of each receptacle to ensure that an inadmissible filling of the receptacle does not occur or to shut off the corresponding receptacle after reaching a certain fill level and to release the other one for loading with waste water.
  • Each receptacle is preferably made of stainless steel and is designed as a pressure vessel.
  • the method for sterilizing preferably highly infectious and / or genetically contaminated wastewater is characterized in that the wastewater is optionally fed to one of two receptacles arranged in a movable under table, that the wastewater to be sterilized is at a temperature Tl of at least 134 ° C, preferably 134 ° C, is heated so that after sterilization, the waste water is cooled to a temperature T2 of at least 85 ° C, preferably at least 80 ° C, and then fed to a drainage system, the other collecting tank being cooled container is filled with further waste water to be sterilized and / or waste water filled in the container is sterilized.
  • the sterilization is preferably carried out over a period of 20 minutes.
  • FIG. 1 shows a basic illustration of a first embodiment of an under-table sterilizer in side view
  • Fig. 3 shows a second embodiment of an under-table sterilizer
  • FIGS. 1-4 shows an alternative embodiment to that shown in FIGS. 1-4
  • FIG. 1 shows, in principle, a device (12) designed as a movable under-table (10) for sterilizing waste water, in particular highly infectious or genetically contaminated waste water.
  • the device (12) or the lower table (10) have at least two receptacle or collecting containers (20), (22) as integral components, which are designed as pressure vessels and are made of stainless steel can.
  • the receptacles (20), (22) can be filled with waste water via lines (24), (26), which is collected and fed, for example, via a funnel (30) and / or a stainless steel basin (32) becomes.
  • the stainless steel basin (32) or the funnel (30) is embedded in a cover (28) of the lower table (10) or fastened to it.
  • Solenoid valves (34) and (36) are arranged between the inlet of the waste water and the lines (24) and (26) running through the receiving containers (20) and (22) to selectively supply one of the receiving containers (20), (22) with waste water fill or carry out the required sterilization in one of the containers.
  • the other container acts as a collecting station.
  • level indicators 38) and (40) which control the solenoid valves (34), (36) and, if necessary, optical or acoustic signals in parallel hand over the respective level.
  • heating rods (42), (44) or other suitable heating elements in the bottom area of each container (20), (22).
  • the other container (20), (22) is either filled with waste water to be sterilized or recooled waste water already present in it.
  • cooling coils (46), (48) run in each container (20), (22), which can optionally be switched into a closed cooling circuit of a refrigeration machine (50) via valves (52), (54).
  • the refrigerator (50), which is air-cooled in the exemplary embodiment, has a conventional structure.
  • the required cooling air is fed in via a fan (52), which draws in air via air inlet opening (56) present in a side wall (54) of the lower table (10).
  • the air flowing through the condenser (58) of the refrigeration machine (50) is discharged via an exhaust air opening (60) which is let into the cover (28) of the lower table (10).
  • refrigerant is optionally supplied to one of the cooling coils (46) or (48) via lines (62), (64).
  • the cooling coils (46), (48) pass into lines (66), (68), which open via the control valves (52), (54) depending on the temperature determined via temperature sensors (70), (72) or shut off.
  • the lines (66), (68) are brought together in front of the refrigeration machine (50), that is to say its compressor (74).
  • the sterilized wastewater is cooled to such an extent that the wastewater is cooled to a temperature of approximately 80 ° C.
  • a solenoid valve (76) or (78) provided on the bottom is opened in order to suck off the waste water by means of a delivery unit such as a gear pump (80) via a line (92) and to feed it into a hose which opens into a conventional drainage system.
  • the hose (84) can be connected via a quick-action coupling (86) provided on the side wall (54).
  • the hose (84) opens into the drainage system, not shown, above the tops of the collecting containers (20), (22) to ensure that if there are any leaks in the connections or valves, contaminated waste water cannot flow into the drainage system in an uncontrolled manner.
  • control and regulating elements or organs are arranged in the upper area of the lower table (10) immediately below the cover (28). In principle, this is indicated by the reference symbol (88).
  • the control (88) further comprises a batch recorder (90) in order to be able to log filling processes, time and temperature processes.
  • each sterilization container (20), (22) is secured with a safety valve (92), (94).
  • a second embodiment of a device (100) is shown, which differs from the device (12) according to FIGS. 1 and 2 only in that for cooling in the containers (20) and (22nd ) existing waste water is not a refrigerant of a refrigerator, but cooling water is used, which can be taken from a drinking water network (102), for example.
  • the cooling water is conducted via a line (104) and connected to the lower table (10) via a quick-action coupling (106), in order to then pass into lines (62), (64) which are in the cooling coils (46) and ( 48) flow out.
  • the lines (66), (68) which can be shut off via the valves (42) and (44) merge into a line (108) which can be connected to a hose (112) via a connecting piece (110), via the sterilized and cooled water to the required extent can be fed to the normal drainage system.
  • the function of the device (100) corresponds to the device (12).
  • FIGS. 5 is a further development of the embodiment of FIGS. 1 and 2 in that the containers (20), (22) do not heat via heating rods, but rather via heating pipes (114) and (116) running in the floor area are connected to a single small steam generator (114) via solenoid valves (118), (120), (122). Depending on the position of the control valves (118), (120), (122), one of the containers (20), (22) or possibly both or none of them is supplied with steam coming from the steam generator (124).
  • the small steam generator (124) consists of a cylindrical housing (126), in which existing, preferably distilled, water is evaporated to the required extent via a heating element (128).
  • the lower table (10) has a water tap (130) which can be connected via the line (104) to a stationary water line (102).
  • the water tap (130) which opens above the funnel (30) or basin (32), preferably has an automatic approach (132) in order to allow water to flow or to shut it off.
  • FIG. 5 corresponds to that of FIGS. 1-4, so that the further elements need not be discussed further.
  • Typical dimensions of the lower table (10) can be: length 900 mm
  • each container (20), (22) made of stainless steel can be 20 1.
  • the heating rods (42), (44) can have an output of 4.5 kW for heating the waste water to be sterilized.
  • the wastewater should be heated and kept at a temperature of 121 ° C over a period of 20 minutes.
  • the sterilized waste water is then cooled to a temperature of approximately 80 ° C.
  • the entire process that is to say the heating, the holding of the waste water at the temperature of 121 ° C. and the subsequent cooling to 80 ° C., takes approximately a period of time of 80 minutes. Consequently, with the device according to the invention (12) or (100) per receptacle (20). (22) a throughput of 15 liters / hour is possible.
  • the lower table (10) can be insulated and clad with a sheet metal jacket.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Clinical Laboratory Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

L'invention concerne un dispositif mobile (10) comportant au moins deux récipients de stérilisation (20, 22) à refroidissement contrôlé pour la stérilisation d'eaux résiduaires telles que des eaux usées infectées ou issues de manipulations génétiques.
PCT/EP1996/000502 1995-02-10 1996-02-07 Procede et dispositif pour la sterilisation d'eaux residuaires Ceased WO1996024390A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59606314T DE59606314D1 (de) 1995-02-10 1996-02-07 Vorrichtung und verfahren zum sterilisieren von abwasser
AT96904007T ATE198552T1 (de) 1995-02-10 1996-02-07 Vorrichtung und verfahren zum sterilisieren von abwasser
DE19680061T DE19680061D2 (de) 1995-02-10 1996-02-07 Vorrichtung und Verfahren zum Sterilisieren von Abwasser
EP96904007A EP0808179B1 (fr) 1995-02-10 1996-02-07 Procede et dispositif pour la sterilisation d'eaux residuaires
AU47882/96A AU4788296A (en) 1995-02-10 1996-02-07 Device and process for the sterilization of waste water

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19504479.7 1995-02-10
DE19504479A DE19504479A1 (de) 1995-02-10 1995-02-10 Vorrichtung und Verfahren zum Sterilisieren von Abwasser
DE29510060U DE29510060U1 (de) 1995-06-26 1995-06-26 Vorrichtung zum Sterilisieren von Abwasser
DE29510060.5 1995-06-26

Publications (1)

Publication Number Publication Date
WO1996024390A1 true WO1996024390A1 (fr) 1996-08-15

Family

ID=26012336

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/000502 Ceased WO1996024390A1 (fr) 1995-02-10 1996-02-07 Procede et dispositif pour la sterilisation d'eaux residuaires

Country Status (5)

Country Link
EP (1) EP0808179B1 (fr)
AT (1) ATE198552T1 (fr)
AU (1) AU4788296A (fr)
DE (2) DE19680061D2 (fr)
WO (1) WO1996024390A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001012559A1 (fr) * 1999-08-13 2001-02-22 The Coca-Cola Company Systeme et procede de traitement local d'eau
WO2002010061A1 (fr) * 2000-08-02 2002-02-07 Oscar Raul Lopez Ordaz Systeme de refroidissement de liquides
US6610210B2 (en) 2001-06-22 2003-08-26 The Coca-Cola Company Disposable cartridge for on-premises water treatment system
ES2358941A1 (es) * 2010-12-03 2011-05-17 Instalaciones Elur, S.L. Instalación de acondicionamiento de efluentes líquidos.
FR3004708A1 (fr) * 2013-04-18 2014-10-24 Actini Module de barriere thermique pour germes notamment pathogenes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108203187A (zh) * 2018-03-21 2018-06-26 湖南正海现代实验室设备有限公司 一种化学实验室试验台台下微型自动废水处理装置
CN110066050A (zh) * 2019-05-14 2019-07-30 上海外高桥造船有限公司 一种船载实验室污水处理方法及处理装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2503605A1 (de) * 1975-01-29 1976-08-05 Georg Kinzler Thermische desinfektion von abwaessern
EP0020157A1 (fr) * 1979-06-01 1980-12-10 Paull, Noel W. Dispositif pour la destruction de la flore bactérienne

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2503605A1 (de) * 1975-01-29 1976-08-05 Georg Kinzler Thermische desinfektion von abwaessern
EP0020157A1 (fr) * 1979-06-01 1980-12-10 Paull, Noel W. Dispositif pour la destruction de la flore bactérienne

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001012559A1 (fr) * 1999-08-13 2001-02-22 The Coca-Cola Company Systeme et procede de traitement local d'eau
US6264830B1 (en) 1999-08-13 2001-07-24 The Coca-Cola Company On premise water treatment system and method
US6416673B2 (en) 1999-08-13 2002-07-09 The Coca-Cola Company On premise water treatment system and method
WO2002010061A1 (fr) * 2000-08-02 2002-02-07 Oscar Raul Lopez Ordaz Systeme de refroidissement de liquides
US6610210B2 (en) 2001-06-22 2003-08-26 The Coca-Cola Company Disposable cartridge for on-premises water treatment system
ES2358941A1 (es) * 2010-12-03 2011-05-17 Instalaciones Elur, S.L. Instalación de acondicionamiento de efluentes líquidos.
FR3004708A1 (fr) * 2013-04-18 2014-10-24 Actini Module de barriere thermique pour germes notamment pathogenes

Also Published As

Publication number Publication date
EP0808179A1 (fr) 1997-11-26
EP0808179B1 (fr) 2001-01-10
ATE198552T1 (de) 2001-01-15
DE19680061D2 (de) 2000-01-05
DE59606314D1 (de) 2001-02-15
AU4788296A (en) 1996-08-27

Similar Documents

Publication Publication Date Title
DE4142089C2 (de) Vorrichtung zum Entsorgen von Körperausscheidungen im medizinischen Bereich
DE69819896T2 (de) Vorrichtung und verfahren zur sterilisation von medizinischen geräten
WO2010106161A2 (fr) Appareil pour désinfecter, stériliser et/ou traiter des instruments médicaux, en particulier dentaires
DE19930546C1 (de) Dampfsterilisator
DE60217724T2 (de) Steuerungsvorrichtung für eine abfallverarbeitungsanlage
DE60205543T2 (de) Autoklav
DE69005018T2 (de) Verfahren und Vorrichtung zum Sterilisieren und Reinigen einer Anlage für aseptische Abfüllung.
EP0808179B1 (fr) Procede et dispositif pour la sterilisation d'eaux residuaires
EP0047408B1 (fr) Procédé pour vider, nettoyer et désinfecter des récipients hygiéniques dans le domaine hospitalier, sans contamination de la partie extérieure de l'appareil utilisé pour sa mise en oeuvre
EP0697923B1 (fr) Dispositif d'elimination de dechets
EP0695503A1 (fr) Four pour cuire à la vapeur
DE3522890C2 (de) Vorrichtung und Verfahren zum Erzeugen steriler Luft
DE60217891T2 (de) Verfahren und vorrichtung zur sterilisation von biologischem abfall
DE19504479A1 (de) Vorrichtung und Verfahren zum Sterilisieren von Abwasser
DE1617961B2 (de) Verfahren zum reinigen einer anlage zum kontinuierlichen sterilisieren eines stoffes
DE29510060U1 (de) Vorrichtung zum Sterilisieren von Abwasser
DE19744490A1 (de) Trinkwasseraufbereitungsanlage
DE4234062A1 (de) Vorrichtung zum Desinfizieren und/oder Sterilisieren von infektiösem Müll
DE3029147C2 (fr)
DE10032390B4 (de) Verfahren und Vorrichtung zur Behandlung von Krankenhausmüll
DE4321999C1 (de) Sterilisations- und Reinigungsanlage für nährstoffhaltige, wässrige Emulsionen
DE69203276T2 (de) Druckwasserkernreaktor, der eine Einrichtung zur Entwässerung des Primärkreislaufs mit einem bestimmten Tiefstand mit einer Selbstsicherung aufweist.
DE4445434C2 (de) Spülvorrichtung zum Reinigen von Gegenständen, insbesondere von Endoskopen
DE2921230A1 (de) Dampfsterilisationseinrichtung
DE102012106996A1 (de) Abwasser-Sammelvorrichtung zum Sammeln von Abwässern sowie Verfahren zur Befüllung einer derartigen Vorrichtung

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AZ BY KG KZ RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1996904007

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1996904007

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

REF Corresponds to

Ref document number: 19680061

Country of ref document: DE

Date of ref document: 20000105

WWE Wipo information: entry into national phase

Ref document number: 19680061

Country of ref document: DE

WWG Wipo information: grant in national office

Ref document number: 1996904007

Country of ref document: EP